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Article Dans Une Revue The Astrophysical Journal Année : 2022

The JCMT BISTRO Survey: A Spiral Magnetic Field in a Hub-filament Structure, Monoceros R2

Jihye Hwang (1) , Jongsoo Kim , Kate Pattle , Chang Won Lee , Patrick Koch , Doug Johnstone , Kohji Tomisaka , Anthony Whitworth , Ray Furuya , Ji-Hyun Kang , A-Ran Lyo , Eun Jung Chung , Doris Arzoumanian , Geumsook Park , Woojin Kwon , Shinyoung Kim , Motohide Tamura , Jungmi Kwon , Archana Soam , Ilseung Han , Thiem Hoang , Kyoung Hee Kim , Takashi Onaka , Chakali Eswaraiah , Derek Ward-Thompson , Hong-Li Liu , Xindi Tang , Wen Ping Chen , Masafumi Matsumura , Thuong Duc Hoang , Zhiwei Chen , Valentin Le Gouellec , Florian Kirchschlager , Frédérick Poidevin , Pierre Bastien , Keping Qiu , Tetsuo Hasegawa , Shih-Ping Lai , Do-Young Byun , Jungyeon Cho , Minho Choi , Youngwoo Choi , Yunhee Choi , Il-Gyo Jeong , Miju Kang , Hyosung Kim , Kee-Tae Kim , Jeong-Eun Lee , Sang-Sung Lee , Yong-Hee Lee , Hyeseung Lee , Mi-Ryang Kim , Hyunju Yoo , Hyeong-Sik Yun , Mike Chen , James Di Francesco , Jason Fiege , Laura Fissel , Erica Franzmann , Martin Houde , Kevin Lacaille , Brenda Matthews , Sarah Sadavoy , Gerald Moriarty-Schieven , Mehrnoosh Tahani , Tao-Chung Ching , Y. Sophia Dai , Yan Duan , Qilao Gu , Chi-Yan Law , Dalei Li , Di Li , Guangxing Li , Hua-Bai Li , Tie Liu , Xing Lu , Lei Qian , Hongchi Wang , Jintai Wu , Jinjin Xie , Jinghua Yuan , Chuan-Peng Zhang , Guoyin Zhang , Yapeng Zhang , Jianjun Zhou , Lei Zhu , David Berry , Per Friberg , Sarah Graves , Junhao Liu , Steve Mairs , Harriet Parsons , Mark Rawlings , Yasuo Doi , Saeko Hayashi , Charles Hull , Tsuyoshi Inoue , Shu-Ichiro Inutsuka , Kazunari Iwasaki , Akimasa Kataoka , Koji Kawabata , Gwanjeong Kim , Masato Kobayashi , Tetsuya Nagata , Fumitaka Nakamura , Hiroyuki Nakanishi , Tae-Soo Pyo , Hiro Saito , Masumichi Seta , Yoshito Shimajiri , Hiroko Shinnaga , Yusuke Tsukamoto , Tetsuya Zenko , Huei-Ru Vivien Chen , Hao-Yuan Duan , Lapo Fanciullo , Francisca Kemper , Chin-Fei Lee , Sheng-Jun Lin , Sheng-Yuan Liu , Nagayoshi Ohashi , Ramprasad Rao , Ya-Wen Tang , Jia-Wei Wang , Meng-Zhe Yang , Hsi-Wei Yen , Tyler Bourke , Antonio Chrysostomou , Victor Debattista , David Eden , Stewart Eyres , Sam Falle , Gary Fuller , Tim Gledhill , Jane Greaves , Matt Griffin , Jennifer Hatchell , Janik Karoly , Jason Kirk , Vera Könyves , Steven Longmore , Sven van Loo , Ilse De Looze , Nicolas Peretto , Felix Priestley , Jonathan Rawlings , Brendan Retter , John Richer , Andrew Rigby , Giorgio Savini , Anna Scaife , Serena Viti , Pham Ngoc Diep , Nguyen Bich Ngoc , Le Ngoc Tram (2) , Philippe André , Simon Coudé , C. Darren Dowell , Rachel Friesen , Jean-Franćois Robitaille
Jongsoo Kim
Kate Pattle
Chang Won Lee
Patrick Koch
Doug Johnstone
Kohji Tomisaka
Anthony Whitworth
Ray Furuya
Ji-Hyun Kang
A-Ran Lyo
Eun Jung Chung
Doris Arzoumanian
Geumsook Park
Woojin Kwon
Shinyoung Kim
Motohide Tamura
Jungmi Kwon
Archana Soam
Ilseung Han
Thiem Hoang
Kyoung Hee Kim
Takashi Onaka
Chakali Eswaraiah
Derek Ward-Thompson
Hong-Li Liu
Xindi Tang
Wen Ping Chen
Masafumi Matsumura
Thuong Duc Hoang
Zhiwei Chen
Valentin Le Gouellec
Florian Kirchschlager
Frédérick Poidevin
Pierre Bastien
Keping Qiu
Tetsuo Hasegawa
Shih-Ping Lai
Do-Young Byun
Jungyeon Cho
Minho Choi
  • Fonction : Auteur
Youngwoo Choi
  • Fonction : Auteur
Yunhee Choi
  • Fonction : Auteur
Il-Gyo Jeong
Miju Kang
Hyosung Kim
  • Fonction : Auteur
Kee-Tae Kim
Jeong-Eun Lee
Sang-Sung Lee
Yong-Hee Lee
Hyeseung Lee
Mi-Ryang Kim
Hyunju Yoo
Hyeong-Sik Yun
Mike Chen
  • Fonction : Auteur
James Di Francesco
Jason Fiege
  • Fonction : Auteur
Laura Fissel
Erica Franzmann
Martin Houde
Kevin Lacaille
Brenda Matthews
Sarah Sadavoy
  • Fonction : Auteur
Gerald Moriarty-Schieven
Mehrnoosh Tahani
Tao-Chung Ching
Y. Sophia Dai
Yan Duan
  • Fonction : Auteur
Qilao Gu
Chi-Yan Law
  • Fonction : Auteur
Dalei Li
  • Fonction : Auteur
Di Li
  • Fonction : Auteur
Guangxing Li
  • Fonction : Auteur
Hua-Bai Li
Tie Liu
Xing Lu
Lei Qian
Hongchi Wang
  • Fonction : Auteur
Jintai Wu
Jinjin Xie
Jinghua Yuan
  • Fonction : Auteur
Chuan-Peng Zhang
Guoyin Zhang
  • Fonction : Auteur
Yapeng Zhang
Jianjun Zhou
Lei Zhu
  • Fonction : Auteur
David Berry
Per Friberg
Sarah Graves
Junhao Liu
Steve Mairs
Harriet Parsons
Mark Rawlings
Yasuo Doi
Saeko Hayashi
Charles Hull
Tsuyoshi Inoue
Shu-Ichiro Inutsuka
Kazunari Iwasaki
  • Fonction : Auteur
Akimasa Kataoka
Koji Kawabata
Gwanjeong Kim
Masato Kobayashi
Tetsuya Nagata
Fumitaka Nakamura
Hiroyuki Nakanishi
  • Fonction : Auteur
Tae-Soo Pyo
Hiro Saito
  • Fonction : Auteur
Masumichi Seta
  • Fonction : Auteur
Yoshito Shimajiri
Hiroko Shinnaga
  • Fonction : Auteur
Yusuke Tsukamoto
  • Fonction : Auteur
Tetsuya Zenko
  • Fonction : Auteur
Huei-Ru Vivien Chen
Hao-Yuan Duan
Lapo Fanciullo
Francisca Kemper
Chin-Fei Lee
Sheng-Jun Lin
Sheng-Yuan Liu
Nagayoshi Ohashi
Ramprasad Rao
Ya-Wen Tang
Jia-Wei Wang
Meng-Zhe Yang
  • Fonction : Auteur
Hsi-Wei Yen
Tyler Bourke
Antonio Chrysostomou
Victor Debattista
David Eden
Stewart Eyres
  • Fonction : Auteur
Sam Falle
Gary Fuller
  • Fonction : Auteur
Tim Gledhill
Jane Greaves
Matt Griffin
  • Fonction : Auteur
Jennifer Hatchell
Janik Karoly
Jason Kirk
Vera Könyves
Steven Longmore
Sven van Loo
Ilse De Looze
  • Fonction : Auteur
Nicolas Peretto
  • Fonction : Auteur
Felix Priestley
  • Fonction : Auteur
Jonathan Rawlings
Brendan Retter
  • Fonction : Auteur
John Richer
Andrew Rigby
Giorgio Savini
Anna Scaife
Serena Viti
Pham Ngoc Diep
Nguyen Bich Ngoc
Philippe André
Simon Coudé
C. Darren Dowell
  • Fonction : Auteur
Rachel Friesen
Jean-Franćois Robitaille

Résumé

Abstract We present and analyze observations of polarized dust emission at 850 μ m toward the central 1 × 1 pc hub-filament structure of Monoceros R2 (Mon R2). The data are obtained with SCUBA-2/POL-2 on the James Clerk Maxwell Telescope (JCMT) as part of the B-fields in Star-forming Region Observations survey. The orientations of the magnetic field follow the spiral structure of Mon R2, which are well described by an axisymmetric magnetic field model. We estimate the turbulent component of the magnetic field using the angle difference between our observations and the best-fit model of the underlying large-scale mean magnetic field. This estimate is used to calculate the magnetic field strength using the Davis–Chandrasekhar–Fermi method, for which we also obtain the distribution of volume density and velocity dispersion using a column density map derived from Herschel data and the C 18 O ( J = 3 − 2) data taken with HARP on the JCMT, respectively. We make maps of magnetic field strengths and mass-to-flux ratios, finding that magnetic field strengths vary from 0.02 to 3.64 mG with a mean value of 1.0 ± 0.06 mG, and the mean critical mass-to-flux ratio is 0.47 ± 0.02. Additionally, the mean Alfvén Mach number is 0.35 ± 0.01. This suggests that, in Mon R2, the magnetic fields provide resistance against large-scale gravitational collapse, and the magnetic pressure exceeds the turbulent pressure. We also investigate the properties of each filament in Mon R2. Most of the filaments are aligned along the magnetic field direction and are magnetically subcritical.

Dates et versions

hal-04443764 , version 1 (07-02-2024)

Identifiants

Citer

Jihye Hwang, Jongsoo Kim, Kate Pattle, Chang Won Lee, Patrick Koch, et al.. The JCMT BISTRO Survey: A Spiral Magnetic Field in a Hub-filament Structure, Monoceros R2. The Astrophysical Journal, 2022, 941 (1), pp.51. ⟨10.3847/1538-4357/ac99e0⟩. ⟨hal-04443764⟩
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